Ma'aurata shine na'urar microwave ta RF da aka saba amfani da ita don rarraba sigina daidai gwargwado zuwa tashoshin fitarwa da yawa, tare da siginar fitarwa daga kowace tashar jiragen ruwa tana da girma da matakai daban-daban.Ana amfani da shi sosai a tsarin sadarwa mara waya, tsarin radar, kayan auna microwave, da sauran fannoni.
Ana iya raba ma'aurata zuwa nau'i biyu bisa ga tsarin su: microstrip da cavity.A ciki na microstrip coupler aka yafi hada da hada guda biyu cibiyar sadarwa hada biyu microstrip Lines, yayin da ciki na kogon coupler ne kawai hada biyu karfe tube.